Slow Video Cutting with FFmpeg: Multiple HTTP Requests

Slow Video Cutting with FFmpeg: Multiple HTTP Requests

Recently, some users have reported issues with slow video processing using FFmpeg. Specifically, when cutting videos, FFmpeg has been observed to send multiple HTTP requests for the same file links, leading to a significant slowdown in the overall process.

Understanding the Problem

When using FFmpeg to cut videos, the software may send multiple HTTP requests for the same file links. This issue is more likely to occur when working with large video files or when using network file links. The exact cause of this problem is not yet fully understood, but it is believed to be related to FFmpeg's internal caching mechanism.

Potential Solutions

There are a few potential solutions to this problem:

• Use a local copy of the video file: By downloading the video file and working with a local copy, you can avoid the need for HTTP requests altogether. This is the most straightforward solution, but it may not be practical for large files or when working with a large number of videos.
• Increase the cache size: FFmpeg uses an internal cache to store data from the input file. By increasing the size of this cache, you can reduce the number of HTTP requests needed. This can be done using the -re and -cache options. For example:
  ffmpeg -re -i input.mp4 -cache 1024M -ss 00:01:00 -to 00:02:00 -c copy output.mp4

  In this example, the -cache option sets the cache size to 1024 MB. This value can be adjusted based on the size of the input file and the available memory on your system.

• Use a different video cutting tool: If the problem persists, you may want to consider using a different video cutting tool. There are many alternatives to FFmpeg, some of which may be better suited to your needs.

The issue of slow video cutting with FFmpeg and multiple HTTP requests is a known problem, but there are several potential solutions that can help. By using a local copy of the video file, increasing the cache size, or using a different video cutting tool, you can reduce the number of HTTP requests and improve the overall performance of the video cutting process.

References

• FFmpeg Documentation: https://ffmpeg.org/documentation.html
• FFmpeg Cache Option: https://ffmpeg.org/ffmpeg.html#Stream-options
• Alternatives to FFmpeg: https://www.videoconverter.com/convert/best-ffmpeg-alternative.html

(c) 2023 ArticleDynamo. This article is provided for informational purposes only. It is not intended as a substitute for professional advice or consultation.